function_UnixTime2UTC

MATLAB编程 谐波信号的现代谱估计算法实现[必做] 采用Matlab编程 [可以利用MATLAB的本征分解函数] (MATLAB)

说明：  水准测量平差计算，需要文件格式，三个文件，观测数据，已知数据，闭合差(English)

里面包含了希尔伯特黄变换的三种方法，还有相关的文献资料说明，能够有助于理解希尔伯特黄变换。(It contains three methods of Hilbert Huang transform, and related literature, which can help to understand Hilbert Huang transform.)

说明：  本程序为阵列信号处理中的波达方向角估计的MATLAB程序,可以学习后优化代码.(procedures for the array of signal processing DOA estimation MATLAB, we can learn from optimized code.)

cohere(x,y,M) computes the coherence function using successive DFTs of length with a Hanning window and 50 overlap. (The window and overlap can be controlled via additional optional arguments.) We see a coherence peak at frequency cycles/sample, as expected, but there are also two rather large coherence samples on either side of the main peak. These are expected as well, since the true cross-spectrum for this case is a critically sampled Hanning window transform. (A window transform is critically sampled whenever the window length equals the DFT length.)

连续信号在各种方法下叠加噪声后的图像分析及simulink仿真模块(After continuous noise signal superimposed image analysis and simulink simulation module in a variety of ways)

说明：  用matlab实现clean算法的程序，可以应用于天波超视距雷达的频谱分析(The program of realizing clean algorithm with Matlab can be applied to the spectrum analysis of sky wave over the horizon radar)

DD算法实现语音增强，噪声谱估计，根据寂静帧和后面能量的对比来估计(DD algorithm speech enhancement, noise spectrum estimation, based on comparative silence frame and rear energy to estimate)

HBM实行快速傅里叶变换，这是谐波平衡法中的一个重要的环节(Harmonic Balance Method is a very useful method in solving rotor dynamics, and fast fourier transform is an important part in it)

it is a software ti localize wireless sensor network